High Efficiency Multi-band Envelope Tracking Power Amplifier with Tunable Output Frequency Bands

被引：0
|
作者：
Yoo, Chan-Sei [1 ]
Liu, Youjiang [2 ]
Fairbanks, John [2 ]
Asbeck, Peter [2 ]
Theilmann, Paul [3 ]
Kimball, Donald [3 ]
机构：
[1] Korea Elect Technol Inst, Elect Mat & Device Res Ctr, Gyeonggi Do, South Korea
[2] UCSD, ECE Dept, La Jolla, CA 92093 USA
[3] MaXentr Technol LLC, La Jolla, CA USA
来源：
2015 IEEE 16TH ANNUAL WIRELESS AND MICROWAVE TECHNOLOGY CONFERENCE (WAMICON) | 2015年
关键词：
power amplifiers; envelope tracking; tunable matching; digital predistortion;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A multi-band power amplifier (PA) with electrically tunable output matching network is reported, whose output power and efficiency can be optimized over multiple frequencies (750MHz, 880MHz and 940MHz). It is incorporated within an envelope tracking (ET) amplifier using a high efficiency dynamic envelope voltage supply. High efficiency (50%) for all the three bands has been demonstrated with good output linearity, using a memory digital predistortion (DPD) method.
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页数：4
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